public class dog {
    String name;
    int age;
    int weight;
    public dog(String n,int a,int w){
        this.name=n;
        this.age=a;
        this.weight=w;
    }
    public String bite(dog dog){
        return "一嘴毛";
    }
    public String bite(ciwei ciwei){
        return "无从下口";
    }
}
